**What is Reactance?**

**Reactance** is essentially the inertia against the motion of electrons in an electrical circuit i.e. the attribute against the flow of electrons in an electrical circuit. It is denoted by the symbol \(R\)

\(R\)

It is also known as the imaginary resistance of an electrical circuit. The motion of electrons constitutes current generation in an electrical circuit and any inertia against this motion of electrons constitutes reactance. It is primarily generated due to the elements inductance or capacitance. In a magnetic field, it resists the change in current of the element whereas in an electric field resists the change in voltage of the element. It is mathematically represented by the letter \(X\)**ohm**. It is primarily of two types.

- Capacitive
- Inductive

**What is Impedance?**

**Impedance** is a combination of resistance and reactance. It is essentially anything and everything that obstructs the flow of electrons within an electrical circuit. Hence it affects the generation of current through the electrical circuit. It is present in all the possible components of the circuit and across all possible electrical circuits. Impedance is mathematically symbolized by the letter \(Z\)**ohm**.It is a superset of both resistance and reactance combined.

In phasor terms, impedance \(Z\)

\(X\)

Where reactance \(X\)

\(X\)

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